On Friday 07 September 2007 21:57:35 Nick Piggin wrote:
>
> > > Anyway, the lfence should be able to go away without so much trouble.
> >
> > You mean sfence? lfence in rmb is definitely needed.
>
> I mean lfence in smp_rmb().
One point of rmb is to stop speculative loads and I don't think we
can get that without lfence.
-Andi
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